I just think all Sengoku games is a DLC or mod that allows for "alternate victory conditions". For example, if you want a play a loyal vassal and help lead your lord to shogunhood, that's an admirable goal. There should be more options for victory in my opinion. There really needs to be a DLC or expansion but I haven't heard anything... I guess Sengoku 2 is possible.
I so down with that idea!!!